Velocity (dynamic) pressure

If velocity pressure is regarded as kinetic energy per unit volume then, denoting the mean velocity of airflow by V, mass by m and density by p, the following can be derived:

* = Тжйг = °’5P1’2 <I5’25)


подпись: (15.26)If the density of air is taken as 1.20 kg m-3 the equation becomes
and the converse is


подпись: (15.27)V= 1.291-Vp7

Posted in Engineering Fifth Edition